JP2002225805A - Automatic filling system into bags - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic filling system into bags by which production of multi-space bags by thermal pressing, a filling operation of contents into the multi-space bags and a bag closing operation by thermal pressing can be automated and labor-saving can be attained. SOLUTION: Roller-formed upper and lower sheet feeders 5, 6 and continuous sheets 5a, 6a mounted in a wound state on the feeders are provided. A path of one sheet 5a is arranged so that it may lead between a movable side thermal pressing unit 4a and a feeding shoot 3, while a lower side sheet 6a is arranged so that it may lead between a fixed side thermal pressing unit 4b and the feeding shoot 3. A lower end of the shoot 3 which fills the contents is arranged between the upper and the lower thermal pressing units 4a, 4b that form the sheets 5a, 6a into multi-line bags. When the sheet are pressed and deposited between the thermal pressing units 4a, 4b, the lower end of the shoot 3 is put into an openings of the bag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bag filling machine capable of continuously producing bags in which contents are sealed.

[0002]

2. Description of the Related Art A technique for manufacturing a bag by heat welding a sheet or film is known. Also, in the manufactured bag,
There is a technique of filling contents such as grains, powders, pastes, and liquids, closing the opening of the bag by heat welding, and packing the contents in a bag. In this technique, a product is manufactured through a bag forming step of welding a sheet by thermocompression bonding, a filling step of packing contents, and a closing step of closing an opening of the bag by heat welding. In the case where bags are continuously formed using a continuous sheet, a single bag (hereinafter, referred to as a single-chamber bag) is formed by thermocompression bonding, and then the contents are packed in a single-chamber bag. And multiple bags at the same time (hereinafter,
(Referred to as a multi-chamber bag), and then the contents are packed into the multi-chamber bag.

[0003]

In the former work of manufacturing a single-chamber bag and packing the contents, there is a technique of continuously performing a bag making step, a contents filling step, and a bag closing step. Is difficult to mass produce. In addition, in the operation of manufacturing a multi-chamber bag and packing the contents, there is a case where the contents filling step and the bag closing step are performed at the same time, but since the bag making step is a separate step, the product is manufactured. It took a lot of work. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an automatic bag filling machine capable of automatically integrating a multi-chamber bag manufacturing operation, a filling operation of contents, and a thermocompression closing operation to save labor. The purpose is to do.

[0004]

In order to achieve the above object, an automatic bag filling apparatus according to the present invention comprises a sheet transfer device for transferring a pair of continuous sheets for forming a bag, and the sheets are superposed. A thermocompression bonding device for forming a bag by heat welding, and a supply device provided with a supply port for supplying the contents to the bag, wherein a portion of the sheet where the opening of the bag is formed is defined by the supply port. After being positioned around, the sheet was heat-sealed in a bag shape by a thermocompression bonding apparatus. In the above invention, the thermocompression bonding apparatus can be provided with a storage portion that can store the bag and the contents supplied in the bag, and an insertion portion that fits the supply port. Further, in the above invention, the bottom of the bag in the current step formed by the sheet and the opening of the bag in the previous step are arranged adjacent to each other, and when the bottom of the bag in the current step is thermally welded, In the process, the opening of the bag is closed by heat welding, and the bag filled with the contents can be manufactured continuously. And the said bag can be made into the multi-chamber bag formed in the width direction of the said sheet.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic bag filling apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an automatic multi-chamber bag filling apparatus according to the present embodiment, and FIG. 2 is a side view thereof. As shown in the figure,
The multi-chamber automatic bag filling apparatus A is provided with a content supply hopper 1, a content supply device 2, and a supply chute 3 as a content supply unit. Among them, the hopper 1 is disposed upright at the uppermost position of the automatic filling device A, and grains, powders and the like are stored inside.

The outlet located at the bottom of the hopper 1
A contents supply device 2 is provided, and can supply the contents supplied from the hopper 1 in equal amounts. The content supply device 2 is connected to the upper end of the supply chute 3, and in the present embodiment, the supply chute 3 is provided with four cylindrical passages. The content supply device 2 can distribute an equal amount of content to each of the four passages. The supply chute 3 is disposed obliquely downward and the lower end of the supply chute 3 is connected to the bag making section. A pair of upper and lower thermocompression devices 4a and 4b are arranged in the bag making section. Each of the thermocompression devices 4 a and 4 b is formed of a rectangular plate, and the plate surface is installed at the same angle as the inclination direction of the supply chute 3. The lower thermocompression device 4b is fixed by the fixing means of the filling device A, and the upper thermocompression device 4a is parallel to the plate surface of the lower thermocompression device 4b by movable means (not shown). It is configured to be able to move up and down.

As shown in FIG. 3 and FIG.
Four grooves 16a and 16b having a semicircular cross section (hereinafter, these grooves are collectively referred to as grooves 16) are formed in the vertical direction at positions opposed to each other. Groove 1
The number of 6 may be one or a plurality other than four.
The groove 16 is opened at the upper end side of the thermocompression bonding devices 4a and 4b,
It extends to near the bottom of the thermocompression bonding devices 4a and 4b. A heat heating plate 15 is mounted around the groove 16 on the facing surfaces of the thermocompression bonding devices 4a and 4b. Heat heating plate 15
Is formed according to the outer shape of the shape of the bag formed in the present embodiment, and one horizontal heating plate 15a extending in the width direction at the lower end of the groove 16 forms the bottom of the bag, and the side of the groove 16 The five vertical heat plates 15b extending in the vertical direction located in the section form the side of the bag. When the movable-side thermocompression device 4b is overlaid on the fixed-side thermocompression device 4a, a cylindrical hole 18 is formed. In FIG. 4, only one movable-side thermocompression bonding device 4a is shown, but the other fixed-side thermocompression bonding device 4b is also provided with a heating plate 15 corresponding to the heating plate 15 of the movable-side thermocompression bonding device 4a. Has been established. Thermocompression bonding device 4
The positional relationship between the supply chute 3 and the supply chute 3 is such that the lower end of the supply chute 3 is inserted into the opening of the hole 18 formed by the groove 16 when the upper and lower thermocompression bonding devices 4a and 4b are overlapped. Is done.

[0008] Roller-like upper and lower sheet feeding devices 5 and 6 and upper and lower continuous sheets 5 wound therearound are provided in the sheet transfer section.
a, 6a are provided. The path of one upper sheet 5a is disposed so as to pass between the movable side thermocompression bonding device 4a and the supply chute 3 from above (upper surface) side of the supply chute 3 by using an auxiliary roller, and the other lower sheet. The path 6a is disposed so as to pass between the fixed-side thermocompression bonding device 4b and the supply chute 3 from the lower side (lower surface) of the supply chute 3. At the lower end of the fixed-side thermocompression bonding device 4b, a lower moving cradle 7 having the same inclination angle as that of the lower surface is provided continuously to the inclined surface, and a pressing roller 7a is provided at a position corresponding to the width of the sheets 5a, 6a. Have been. The roller 7a is a thermocompression bonding device 4
The bags made in a and 4b can be held. A cutter 8 with a position sensor is disposed above the receiving table 7 at a position spaced by the length of one bag formed from the lower end of the fixed-side thermocompression bonding device 4b. The blade of the cutter 8 extends in the width direction of the sheets 5a and 6a, and can cut the joint of the bags. At the lower end of the moving cradle 7,
A transfer conveyor 9 having an endless belt arranged in a horizontal direction is provided.

Next, the operation of the automatic bag filling machine A will be described. First, the upper thermocompression bonding device 4a is caused to stand by at an upper position as shown in FIG. 2 by a movable device (not shown), and the contents to be bagged are stored in the hopper 1. Next, the upper and lower sheet feeding devices 5 and 6 are operated to introduce the leading end of the upper sheet 5a between the movable-side thermocompression device 4a and the lower end of the supply chute 3, and to attach the leading end of the sheet 5a to the fixed-side thermocompression device. 4
b to the point beyond the lower end. At the same time, the leading end of the lower sheet 6a is introduced between the fixed-side thermocompression unit 4b and the lower end of the supply chute 3, and the leading end of the sheet 6a is transferred to a position beyond the lower end of the thermocompression unit 4b. , 6a is suspended.

Here, the movable side thermocompression device 4a is moved below the fixed side thermocompression device 4b, and the thermocompression devices 4a,
4b, the heating plate 15 is provided, so that the upper and lower sheets 5a, 6
a is thermally welded. Then, a four-chamber bag with the bottom and both sides welded is formed. At this time, the lower end of the chute 3 is inserted into the opening on the upper side of the bag. On the other hand, the contents stored in the hopper 1 located on the upstream side are supplied to the contents supply device 2, and the contents are divided into four equal parts in the supply device 2, discharged to the supply chute 3, and discharged. Is filled into the bag by a predetermined amount through each passage as it is. Thus, the grooves 1 of the thermocompression bonding devices 4a, 4b
The bagged contents are accommodated in a cylindrical hole 18 formed by 6.

Then, the movable thermocompression device 4a is moved upward, the sheet feeding devices 5 and 6 are operated, and the upper and lower sheets 5a and 6a are transported by a distance corresponding to the length of the bag. , 6a, the state shown in FIG. Here, the sheets 5a and 6a transferred between the upper and lower thermocompression bonding devices 4a and 4b are heat-welded to form the multi-chamber bag 1.
Create 0. At this time, when the bottom of the multi-chamber bag 10 is welded, the opening of the multi-chamber bag 11 in which the contents are packed in the previous step shown in FIG. 2 is adjacent to the bottom of the multi-chamber bag 10 created in the current process. Since they are at the common position, the bag is closed at the opening of the multi-chamber bag 11 in the previous process.

When the contents are packed as described above, the multi-compartment bag 10 produced in the present process is transported by the length of one bag, as shown in FIG. The multi-compartment bag 11 reaches the position of the holding roller 7a where the multi-chamber bag 11 was held. At this time, the multi-compartment bag 11 packed in the previous process is connected to the cutter 8 at the boundary between the multi-compartment bag 11 and the multi-compartment bag 10 in the present process.
And separated from the continuous sheets 5a and 6a side,
Product 17 is obtained. The multichamber bags 10 and 11 filled with the contents can be automatically manufactured by sequentially repeating the above-described operations. At this time, the cutter 8 accurately detects the welded portions of the sheets 5a and 6a by a sensor. The cut multi-chamber bags are transferred to a predetermined place via the transfer conveyor 9. As described above, in the present embodiment, the bag making step, the contents filling step, and the bag closing step using the multi-chamber bag can be performed successively, so that the labor of the operation can be reduced. In the present embodiment, the supply chute 3, the upper and lower thermocompression bonding devices 4a, 4b
The lower moving receiving table 7 is a continuous inclined surface. Accordingly, if the leading end of the continuous sheet is guided to the upper and lower thermocompression bonding devices 4a and 4b at the beginning of the work, the subsequent work can move the multi-chamber bag 11 by the gravity action of the packed contents. The contents can be bagged by energy saving. However, the present invention has a well-known accessory, so that the sheets can be transported in the horizontal direction,
The contents can be bagged to complete the product.

Although the embodiments of the present invention have been described above, the present invention is, of course, not limited thereto, and various modifications can be made based on the technical concept of the present invention. For example, in the above embodiment, a pair is used by stacking sheets up and down, but a sheet obtained by folding one sheet up and down may be used. Depending on the demand mode of the product, the blade of the cutter is provided only in the width direction of the multi-chamber bag 11, and
Was cut, but the welded portion in the vertical direction of the multi-chamber bag 11 may also be cut. Alternatively, a slit may be provided in the hot heat plate 15a, and a cutter may be inserted from between the slits to cut the boundary between the multi-chamber bags 10 and 11 at the hot heat 15a. Further, the chute 3 can be moved in the vertical direction, so that the distortion at the time of thermocompression bonding of the multi-chamber bag 10 can be reduced.

[0014]

As described above, according to the present invention, a bag is formed by heat-welding a sheet by stacking the sheets and a sheet transfer device for transferring a pair of continuous sheets for forming a bag. Thermocompression bonding device, and a supply device provided with a supply port for supplying the contents to the bag, and after positioning a portion of the sheet where the opening of the bag is formed around the supply port, the sheet Was heat-sealed in a bag shape by a thermocompression bonding apparatus, so that a bag filled with bagged contents could be manufactured continuously. The above invention provides a bag-forming operation by providing the thermocompression bonding apparatus with the bag and an accommodating portion capable of accommodating the contents supplied in the bag, and an insertion portion for fitting the supply port, The filling operation of the contents to be bagged can be performed in the same place. In addition, the above invention,
The bottom of the bag in the current process formed by the sheet and the opening of the bag in the previous process are arranged adjacent to each other, and when the bottom of the bag in the current process is thermally welded, the opening of the bag in the previous process is formed. Is closed by heat welding, a bag filled with contents can be continuously and efficiently manufactured. By making the bag a multi-chamber bag formed in the width direction of the sheet,
Mass production of products is possible.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic bag filling apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the automatic bag filling apparatus according to the embodiment.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a perspective view of the upper thermocompression bonding apparatus of FIG. 2;

FIG. 5 is a perspective view of a completed multi-chamber bag manufactured in FIG. 1;

[Explanation of symbols]

 A automatic bag filling device 1 content supply hopper 2 content supply device 4a, 4b thermocompression bonding device 5, 6 sheet supply device 5a, 6a continuous sheet 10, 11 multi-chamber bag 12 content 15 hot heat plate 16 groove 17 product

Claims (4)

[Claims] 1. A sheet transfer device for transferring a pair of continuous sheets, a thermocompression bonding device for forming a bag by heat-sealing the sheets by overlapping the sheets, and a supply port for supplying contents to the bag. A feeding device, wherein a portion of the sheet in which the opening of the bag is formed is positioned around the feeding port, and then the sheet is thermally welded in a bag shape by a thermocompression bonding device. Filling device. 2. A thermocompression bonding apparatus comprising: a housing for accommodating the bag and contents supplied in the bag; and an insertion portion for fitting the supply port. 2. The automatic bag filling device according to 1. 3. The method according to claim 1, further comprising: arranging a bottom portion of the bag in the current process created by the sheet and an opening of the bag created in the previous process adjacent to each other, and thermally bonding the bottom portion of the bag in the current process. ,
The bag filling apparatus according to claim 1 or 2, wherein the bags in the previous step are simultaneously closed by heat welding to continuously manufacture bags filled with the contents. 4. The bag filling device according to claim 1, wherein the bag is a multi-chamber bag formed in a plurality of widthwise directions of the sheet.